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Prel iminary Pro j e c t FULCRUM Phase I Tasking

power and minimum t ime fo r an of f -on cyc le .In the case of the acce le ra ted f i lm approach, aneva lua t ion of wasted fi lm due to degraded imagery shouldbe made. Also, the f eas i b i l i t y of using an in te r rup tedscan mode of opera t ion should be s tud i e s . The problemo f add i t iona l programmer complexi ty should a l so be ex amined in t h i s con tex t .At the conclusion o f the s ix month program, a det a i l ed eva lua t ion r ep o r t on each of the tw o prototypesw i l l be de l ivered . This r epor t w i l l inc lude the fOllow

ing:a . The r e s u l t s of exper iments designed tomeasure the fi lm veloci ty e r r o r s .b. A s t a t i s t i c a l es t imate of image degradat iondue to f i lm veloci ty e r r o r .c . The r e s u l t s of environment chamber t e s t sdesigned to examine high speed fi lm handl ingproblems (such as corona discharge) a t ope ra t iona lgas pres su res .d . The r e s u l t s of exper iments with Kodak Type4404 7ft fi lm designed to t e s t th e two prototypesfo r f i lm damage ( sc ra t ch ing , e t c . ) .e . A summary comparison of the tw o pro to typesi nc lud ing ope ra t iona l cons ide ra t ions and es t imatedr e l i a b i l i t y .

Task I I : Camera Dynamics Stud ies and Engineering TestMock-Up

A d e t a i l e d a n a l y t ic a l s tudy o f the camera dynamics.P a r t i c u l a r emphasis should be placed on:

a . Bearing, loading, and gas requirements duringboth prelaunch t e s t ing and in f l i g h t ope ra t ion .

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Preliminary Project FULCRUM Phase I Tasking

b. The perturbations to camera rota t ion causedby spacecraf t torquing.c . Effects of s tar t-up t ransients - - par t icu la r ly film supply and takeup spools.d. Effects of c. g. sh i f t s due to fi lm movement.

In addit ion to the above analyt ical s tudies , a fu l lsca le s ingle camera mock-up wil l be designed and bui l t .The design ef for t should include a survey of pas t experience with large a ir bearings of th i s type, par t icular lyunder near vacuum environmental condit ions. The primarypurposes of th is mock-up wil l be to t e s t a ir bearingoperat ion under operat ional environmental condit ions, andto t e s t and evaluate the performance of the s l ip r ingstha t provide e lec t r i ca l coupling between the opt ical barand the space c ra f t . These t es t s wi l l include s tar t -upand stopping as well as s teady-state operat ion. To th isend, the weights and balances of the mock-up should beas rea l i s t i c as possible , consis tant with the prevail ings tage of the camera design.

A secondary purpose of the mock-up t es t s wil l be toinstrument for vibrat ion measurements insofar as they aredeemed useful and feas ible .

The product of th is s ix month ef for t wil l be a deta i led report covering the analyt ical s tudies outl inedabove, and a second repor t covering the mock-up designand experimental re su l t s . This second report should in clude an ext rapolat ion of the t e s t re su l t s to f ree fa l lcondit ions, as well as an examination of the launch loadsproblem. The mock-up experiments should be suff ic ient lydetai led and def ini t ive to permit immediate engineeringdeSign of a high confidence bearing and s l ip r ing conf igurat ion.One of the reports should include a summary sec t iondiscussing the est imated ef fec t s on image quali ty due togross camera dynamics (not including film velocity a ireffec ts ) .

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Pre l iminary P r o j ec t FULCRUM Phase I Tes t ing

Task I I I : Opt ica l DesignA two to three month e f f o r t leading to a f i n a l

FULCRUM o p t i c a l system des ign . The des ign shou ld bec a r r i e d to p repara t ion of f ab r ica t ion sp e c i f i c a t i o n s .In add i t ion to the engineer ing sp e c i f i c a t i o n s , ar ep o r t w i l l be prepared discuss ing the e s s e n t i a l s ofthe design and the reasons fo r image degrada t ion , bothon and o ff a x i s . This r ep o r t wi l l include an op t i ca lelement weight es t imate .I f pa r t i c u l a r elements of the o p t i c a l system appearto present bas ic f eas ib i l i t y problems, t h i s s tudy mayphase in to a three to four month c r i t i c a l componentfab r i ca t ion and t e s t phase . In any case , t h i s taskmust be completed and repor ted on by the end of Phase I .

Task IV: F a c i l i t i e s StudyA f ive month s tudy to iden t i fy add i t iona l f a c i l i t i e srequi red fo r the suppor t of the FULCRUM program. Deta i ledspec i f i ca t ions fo r these f a c i l i t i e s w i l l be developedso t ha t , on r e l ea s e of funds , procurement of equipment

and f a c i l i t y cons t ruc t ion can proceed withou t delay .This planning should include f a c i l i t i e s fo r dynamicperformance measurement o f the completed camera systemunder ope ra t iona l environment cond i t ions . By the endof the f ive month pe r iod , a summary document should beprepared ou t l in ing th e j u s t i f y ing arguments fo r thevar ious recommended f a c i l i t i e s , inc lud ing co s t andschedul ing in format ion .Task V: Design and Engineering

A de ta i l ed camera design e f f o r t to be coordinatedwith the f i lm handl ing and engineer ing t e s t mock-upt a sks . This i s a s ix month program, involving d e t a i l edcomponent and sUb-system engineer ing with the fol lowingmajor goa ls :

a . Suppor t of the f i lm handl ing pro to type andcamera mock-up t a sk s .

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b. Prepara t ion by the end o f month two ofan i n t e r face document to be used by companiesinvolved in the space vehic le compet i t ion .c . A s ix month r epor t summarizing the engineer ing e f f o r t to t ha t date emphasizing weigh t ,power, and thermal cons idera t ions .

While the main purpose of th i s task i s to a r r i v e a tf i rm weight and power numbers, the work should be organizedso as to minimize add i t iona l des ign and engineer ing e f f o r trequ i red when funds are r e leased fo r camera procurement .To t h i s end a f u l l sca le des ign mock-up should be b u i l t witha l l sub-systems in p lace . This mock-up i s in tended both todemonstrate packing f eas i b i l i t y and to aid in f i na l des ignand f a b r i c a t i o n .This t a sk wi l l a l so include some add i t iona l study ofa l t e rna t ive camera conf igura t ions . This work w i l l be concen t ra t ed dur ing the f i r s t month of Phase I and may inc ludepre l iminary weights and power es t imates . Work w i l l proceedin c lose coordina t ion wi th the contract ing agency. Spec i f i crepor t ing requirements w i l l be worked out as necessary .

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NRO APPROVED FOR

RELEASE 17 September 2011